- All sections
- B - Performing operations; transporting
- B01D - Separation
- B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
Patent holdings for IPC class B01D 46/00
Total number of patents in this class: 8121
10-year publication summary
|
636
|
679
|
852
|
776
|
778
|
824
|
919
|
897
|
668
|
202
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| MANN+HUMMEL GmbH | 1682 |
547 |
| Donaldson Company, Inc. | 1513 |
507 |
| LG Electronics Inc. | 69257 |
176 |
| Cummins Filtration IP, Inc. | 812 |
165 |
| NGK Insulators, Ltd. | 4589 |
148 |
| 3m Innovative Properties Company | 18406 |
141 |
| Ibiden Co., Ltd. | 1724 |
117 |
| Samsung Electronics Co., Ltd. | 131630 |
100 |
| Caterpillar Inc. | 8877 |
76 |
| Corning Incorporated | 9932 |
72 |
| MAHLE International GmbH | 2670 |
66 |
| Baldwin Filters, Inc. | 257 |
64 |
| Camfil AB | 226 |
62 |
| K&N Engineering, Inc. | 405 |
61 |
| Sumitomo Chemical Company, Limited | 8808 |
54 |
| Coway Co., Ltd. | 649 |
51 |
| Parker Intangibles LLC | 1237 |
49 |
| Ford Global Technologies, LLC | 19702 |
44 |
| Parker-Hannifin Corporation | 999 |
39 |
| Carl Freudenberg KG | 1346 |
37 |
| Other owners | 5545 |